Francois josue lothammer



(No Model.)

I. J; LOTHAMMER.

GARBURETOR.

No. 376,248. Patented Jan. 10. 1888.

l/V VE N TOR UNITE STATES CARBU RETOR.

SPECIPIGATIQN-forming part of Letters Patent No. 376,248, dated January 10, 1888.

Application filed March 13, 1886. Serial No. 195,001. (No model.) Patented in France March 19, 1855, No. 167,740; in Belgium February 23, 1886, No. 72,118; in England February 25, 1880. No. 2,766; in Germany March 4. 1886, No. 38,009,- in Italy March 31,1 86. XXXVIII, 485,- in Portugal Marrh 31, 1886, No. 1,032, and in Spain August 10, 1886, No. 9,020.

To all whom it may concern:

Be it known that I, FRANQOIS JOSUE LOT- HAMMER, of the city of Paris, France, have invented a system of portable apparatus for the manufacture of carbureted air without the aid of heat, (which has been patented in France, March 19, 1885, No. 167,740; England, February 25, 1886, No. 2,766; Belgium, February 23,

' 1886, No. 72.118; Italy, March 31, 1886, Vol. XXXVIII, No. 485; Spain, August 10, 1886,

No. 9,029; Portugal, March 31, 1886, No. 1,032, and in Germany, March 4, 1886, No. 38,069,) of which the following is a full, clear, and exact description.

The invention consists in a novel construc 'tion, combination, and arrangement of parts, as hereinafter clearly described, and particularly pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in whichsimilar letters of reference indicate corresponding parts in allthe figures.

Figure l is a sectional elevation of my improved apparatus. Fig. 2 is a plan view. Fig. 3 is a detail view of the pressure-regulating valve on the air-reservoir. Fig. 4 shows in section the valved conductors through which the air passes from the reservoir to the carburetor. Fig. 5 illustrates in sectional and 0 plan view the novel form of jet employed for distributing the air through the hydrocarbon.

The apparatus consists of anair-rcservoir, O, which is hermetically sealed, and in which the air is introduced at A by a pn mp or equivalent apparatus operated by any suitable mo tive power. The air passes up through the conductor E in the top-0t the reservoir through the bent conductor P, thence by a pipe-connection provided with a cook, 0 through the 0 bent conductorp, and down through the top of the airreservoir to the pipe E, which leads down into the liquid hydrocarbon contained in the bottom of the carburetor G.

Within each bent conductor P 'P on the top of the air-reservoir is placed aweighted valve, which is normally held open by the pressure of the entering air, but when such pressure is reduced or removed closes automatically by gravity and the pressure of the hydrocarbon vapor, to prevent the passage of the hydrocan bon liquid or vapor through the air-pipe E and connections P P into the air-reservoir.

the air-conducting pipe E is passed, consists of a closed cylinderinclosed within the air-reservoira'nd supported centrally therein. In the base h of the carburetor is contained a quantity of liquid hydrocarbon, down through which the aiuconducting pipe E passes.

For thoroughly distributing the entering air through the liquid hydrocarbon, I provide the lower immersed end of the pipe E with a jet constructed, as shown .clearly'in Fig. 5, with a series of radially-projecting short tubes, I, flattened at their outer ends to eject fan-like streams of air, and alternately twisted in opstreams form a continuous circle.

The liquidhydrocarbon is automatically supplied to the carburetor from a closed annular receptacle, 9, surrounding the middle part of the carburetor, by means of a c0n- ('ductor, V, leading from the lower part of the i receptacle out through the airreservoir 0, partially around the same, and then inward to and'through the bottom of the carburetor. The outside part of the conductor is provided with a cock, R, and with a stopper, k, for discharging the hydrocarbon when necessary.

Any' suitable gage may be applied to the conductor V, if desired, to indicate the height of the hydrocarbon in the receptacle 9, and the liquid can be fed to the receptacle by means of. a pipe, Z, leading from the top of the same out through the reservoir, the outer end being normally closed by a suitable plug or stopper. (Not shown.)

The liquid hydrocarbon in the carburetor is maintained at a constant height by means of a siphon, F, leading from the top of the receptacle 9 down to the desired level of the hydrocarbon, the rise of the liquid above the lower open head, 2, of the siphon checking the flow from the receptacle 9. v

The air issuing in a spray, as described,fr0m the immersed end of the pipe E is thoroughly impregnated with the hydrocarbon vapor, forming a combustible gas, which passes The carburetor G, through the top of which 7 posite directions, so that the series of issuing through the pipe M out through the top of the air-reservoir, and is drawn off for use, as desired, from the pipe N, provided with a regulating-cock, as shown.

In order to counteract the cooling of the carburetor produced by the volatilization of the hydrocarbon, I form thelower part of the outer reservoir, 0, into a heating-chamber, 6, surrounding and extending below the base h of the carburetor, and lead into the bottom of the heating-chamber directly below the bottom of the carburetor, by means of the conductor 0, a suitable heating agent, as steam or hot air. The steam or hot air circulates below and around the base of the carburetor, heating the hydrocarbon therein, and then escapes into the outer air through aserics ofapertures, f, formed in the wall of the outer reservoir. If hot air is used as the heating agent, it may be produced by a gas-jet, b, in the domed, supported on legs 1, the pipe 0 leading from the top of the dome, as shown in Fig. 1.

Any usual form of thermal-governing apparatus may be employed, if desired, to regulate the gas-jet b by means of the cock at in accord ance with the temperature of the heating agent conveyed by the pipe 0.

To indicate and regulate the pressure in the reservoir O, I provide a manometer-indicator, D, and a novel form of self acting governingvalve in the top of the same. This valve 8 is provided with a stem, 0:, terminating in atray or platform, 7, which rests on the end of the lever z. The lever z oscillates, by its knifeedges 1;, on the support a, and is provided at its other end with a counterpoise, p,which balances the valve, its stem, and the tray or platform.

The escape-valve s regulates the pressure of the air entering the carburetor, the tray 3 be ing weighted according to the number of burners to be supplied. \Vhen the pressurein the air-reservoir becomes excessive, the valve 3 is raised and the surplus air escapes. This air is odorless, as the passage of the hydrocarbon vapor from the carburetor into the air-reservoir is entirely obviated, as before stated.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination,with the compressed-air reservoir 0 and its supply-pipe, of the carbureting-chamber G, within the reservoir, a valved pipe leading from the reservoir into the chamber G,near its bottom, the hydroearbon-recep tacle g, surrounding the said chamber and having a pipe leading from its lower end into the bottom of the chamber, and a siphon extending from the top of the said receptacle down into the carbureting-chamber G, and terminating above the lower'end of the compressed-air pipe, substantially as set forth.

2. In a carburetor, the combination,with the carbureting-chamber, of the air-supply pipe leading to the bottom of the chamber andprovided with straight tubes at right angles thereto, the outer ends of the tubes being flattened and inclined with respect to the axis of the pipe alternately in opposite direetions,substantially as set forth.

3. The combination of thcair-reservoir with the inlet-pipe, the carbureting-vessel within said receiver and connected therewith by means of the pipes I P, having, respectively, checkvalves 0' O, the said pipe 1 terminating within the carbureting-vessel and having an air-spraying attachment at its lower end, a siphon leading from the top of the oil-receptacle down to the earbureting-vessel, and the heating-chamber 12, below and surrounding the base of the carburetor, all the parts operating substantially as set forth.

4. In a carbureting apparatus, the combina tion, with the air-reservoir and the carburetor supported centrally within the same, of an annular heating-chamber, 0, formed in the lower part of the air reservoir, surrounding the lower part of the carburetor and extending beneath the same and provided with lateral escape-apertures f, and the heat-supply pipe e, leading into the heating chamber, substantially as shown and described.

5. A carbureting apparatus constructed of an air-tight reservoir,C, a gas-tight carburetor, G, held within the same, a closed liquid-hydrocarbon receptacle, 9, surrounding the carburctor,an ai r-conduetorleading outward from the reservoir 0 to receive a cock, 0", and thence returning into the carburetor, aliqnidhydrocarbon-supply pipe, V, leading outward from the reccptaeleg, through the reservoir 0, to receive a cock, 7c, and thence returning through the reservoir to the carburetor, and a gas-discharge pipe, M, leading outward from the carburetor, substantially as shown and described.

l LANQOIS JOSUll LOTIIAMMER. \Vitnesses:

Rom. M. Hoornn, ALBERT MoRnAU. 

